Patrick w



(Model.)

P. W. LAMB. Plue Gleaner..

No. 232,406. Patented sept. 21,1880.

N. PETERS. FHOTOLTMOGRAPHER, WASHINGTON. D. C.

4o fully described.

45 tion.

Nrren [STATES PATENT OFFICE.

PATRICK w. LAMB, or ALBANY,NEW` Yoan.

FLUE-o LEAN ER.

SPECIFICATION forming part of Letters Patent No. 232,406, datedSeptember 21, 1880.

Application filed May l2, 1880.

5 Improvement in Flue-Cleaners, of which the following is afspecication.

The invention relates to expansiveuecleaners for clearing ilues offurnaces from any accumulation of deposits oi' smoke or other forio eignsubstances. i

The object ot' my invention is to provide an expanding scraper' whichwill be yieldingin its nature and be capable of being expanded orcontracted in its diameter, so as to accurately tit and ll the boreofthe tubes, and which may4 be readily expanded and contracted while inthe bore by simply turning its handle in the proper direction, and alsoto provide an elastic or yielding cleaner which may be readily adzojusted to compensate for wear, and which will remove the looseneddeposits from the lues.

To this end the invention consistsin a, conical-shaped scraper havingseveral blades arranged in conical form and so combined with a 2 5traveling follower as to be capable of being expanded or contracted inits diameter while in the iiue.

rIhe invention further consists in a eXible or yielding cleanerconstructed of elastic ma- 3o terial, combined with a gritty substancein such manner that the said cleaner will be capable ot' having its bodyenlarged or expanded ,in its circumferential direction.

Theinvention further consists in the combination, with the elasticcleaner, of washers t having conicalshaped leading or guiding ends,

as more fully hereinafter specified 5 and the invention nally consistsin the particular combination and construction of parts, as more In theaccompanying drawings, in which similar letters of reference indicatelike parts, Figure l represents a perspective view ot a line scraper andcleaner embodying my inven- Fig. 2 represents a sectional elevation ofvthe same, and Fig. 3 a sectional view with the parts arrangeddifferently for accomplishing the same results.

The letterAindicates the stem of the device,

5o which is provided with a screw-thread, s. A

indicates the attaching-collar, made solid with (Model.)

said screw-threaded stem, and provided with bore s', for attachment to arod, R, by which the device is operated.

The letter B indicates a clamping-washer made with tapering flangesextending from said washer to the end ot' a sleeve cast solid with boththe washer andiian ges. This washer I denominate a leaderi 'Ihe letter Bindicates a similar leader. These leaders are provided with a bore of adiameter sufcient to freely receive the screw-threaded stem A.

C is an elastic cleaner, composed of rubber or other suitablemateriahwith which iis incorporated emery or other equivalent gritty substance. rFhis elastic cleaner is also provided with a bore of sufficientdiameter to receive the screw-threaded stem A, and is clamped betweenthe leaders B and B on the stem.

The letter D indicates an expansion-.scraper composed of severalslightly-curved blades, c, constructed from flat tempered steel and of atapering form, as shown in Fig. l. rIhe said blades are secured to ablock, b, by the conical band c and a screw or other suitable fasteningdevice. As thus constructed the scraperD is conical in form and iscapable of being readily expanded.

The letter E indicates an expanding screw collar or follower, which titsthe screw-threaded stem A, and is adapted to work on the same and in theinterior of the conical scraper from 4its open end, as shown in Figs. 2and 3.

The letter F indicates a set-nut fitting the screw-threaded stem A, forclamping the leaders B together for upsetting or expanding the elasticcleaner G.

I prefer to arrange` the several parts or de vices on the screw-threadedstem A in the manner shown in Figs. l and 2 for ordinary work, as whenthus arranged the scraper D, when the device is thrust forward throughthe flue, will cut or scrape the deposit on the surface of the bore,while the elastic cleaner will follow and carry the loosened depositsforward after the scraper. 1n some cases I would arrange the severaldevices substantially as shown in Fig. 3, in which I would expand thescraper to a larger diameter than that of the cleaner, and wouldcommence operations in the liuc at the most distant end and workthedevice in the'flne short distances each time, and

IOO

gradually increase the distance at each thrust until the near end of theflue has been reached, when I would expand the elastic cleaner to thesize of the bore, or slightlylarger, and run the devices backward andforward alternately through the whole of' the ue.

If desired, the several devices may be arranged on thc screw-threadedstein substantially in the order shown in Figs. l and 2 of the drawings,with this dierence: that the expanding scraper will be arranged with itslarger and scraping end toward the attachingcollar A', and the elasticcleaner will be toward the rear end of the stem, in which case I woulduse the device to clean the Hues by drawing it toward the operator.

I n operatin gmyimproved device the scraper D should be expanded bytheexpanding screwcollar E to a diameter which will about correspond withthe diameter ofthe flue to be cleaned. The elastic cleaner is also to beexpanded in its diameter by forcing the leaders toward each other.

Ihe scraper will, when the device is operated, loosen the deposity onthe interior of the flue, while the elastic cleaner will carry theloosened deposit out of the same. The emery or other gritty substanceincorporated with the cleaner will scour the interior of the liuc,effectually removing any particles left by the scraper.

Having thus described my invention, what I claim isl. The elasticcleaner C, composed of rubber or other similar material and a grittymaterial, in combination with mechanism for expandin g said cleaner,substantially as specified 2. The combination, with the screw-threadedstem A, elastic cleaner C, leaders B B', and nut F, of theexpansion-scraper D and screw collar or follower E, substantially as setforth.

3. Ina flue-cleaner, the combination, with an expansionscraper, ot' anelastic gritty cleaner capable of expansion, substantially as and forthe purposes set forth.

PATRICK W. LAMB.

Witnesses:

ALEX. SELKIRK, CHARLES SELKIRK.

